I have a project I would like to create using PHP and SMS messaging, but am at a loss for how to go about it.
Description:
User with cell phone sees a sign or sticker in public place at the site of some historical event. They send an SMS message to the number listed on sign/sticker and revceive an automated message back to their phone that describes briefly the event that occured at the location where they stand.
Issues:
I am unsure how to deal with the various SMS numbers one would have to send to and how to circumvent the issue of various service providers.
I realize this may be a little outside of the topics this discussion board focusses on , but any guidance as to where to start with this would be much appreciated.